THE MOUTHS ARE SMALL AND ROUND, WHITE AND SOFT, AND CAN BE COOKED ALONE OR WITH OTHER VEGETABLES. THE MOUTH AND MOUTH ARE RICH AND CONTAIN A DOZEN TRACE ELEMENTS, INCLUDING SELENIUM, CALCIUM, MAGNESIUM AND ZINC, AS WELL AS NUTRIENTS SUCH AS CARBOHYDRATES, VITAMIN B1, B2, PROTEINS, VITAMIN E AND VITAMIN D. THERE IS NO NEED FOR FOOD SUCH AS CHICKENS WHEN COOKING。